This fact-checked article examines every key detail of the announcement, from fund sizes and LP composition to the contrarian AI strategy articulated by Managing Partner and CIO Charly Zwemstra.

Fund Names and Sizes

Both funds closed at their hard caps:

• Main Capital IX (flagship buyout fund): €4.0 billion
• Main Foundation III (foundation vehicle): €1.25 billion
• Combined total: €5.25 billion

Main Capital IX is more than double the size of its predecessor, Main Capital VIII, which raised €1.9 billion in 2024 . Main Foundation III also more than doubled the previous foundation vehicle .

Total AUM

The raise lifts Main's assets under management to over €12 billion. The firm now invests on behalf of over 200 limited partners .

LP Composition and Re-Up Rate

• Re-up rate exceeding 120%: Existing limited partners committed more capital than in the prior fundraise, demonstrating strong conviction in Main's strategy .
• Notable returning investor: Hamilton Lane, a global private markets investor, was among the existing LPs that re-upped .
• Global expansion of LP base: Both funds attracted commitments from sovereign wealth funds, public pension funds, and insurers across North America, Europe, the Middle East, and Asia .
• Growing US presence: In the 2024 predecessor fundraise (Main Capital VIII), approximately 25% of commitments came from US investors; the 2026 funds further expanded that international reach .

Historical Performance Metrics

• 38 exits completed at a weighted average gross return of 3.6x invested capital . (Note: some sources report 4.7x; the lower 3.6x figure is used here to be conservative, as it appears across multiple credible sources .)
• More than 300 portfolio companies invested in across the firm's history .
• 20+ year track record: The firm was founded in 2003 .

Geographic and Sector Focus

Core markets: Benelux, DACH (Germany, Austria, Switzerland), Nordics, France, and North America .

New expansion into the United Kingdom: The firm announced plans to enter the UK market with these new funds .

Exclusive sector focus: Enterprise software (B2B) only. Main targets SaaS, cybersecurity, digital health, fintech, legal tech, govtech, and HR/payroll software . The firm pursues a buy-and-build strategy — acquiring majority and controlling stakes in profitable B2B software companies. It does not do minority growth equity or venture-stage deals .

AI Strategy: 'Betting Against the AI Panic'

Main is making a deliberate contrarian bet. The firm's view, as reported by TNW and other outlets, is that while public markets fear AI will disrupt enterprise software, AI is instead creating a new frontier of growth for essential, 'boring' enterprise software .

According to Main, AI is rapidly reshaping how software is built, sold, and scaled, creating AI-driven growth opportunities across its core verticals — healthtech, govtech, infrastructure software, and others . The firm published a whitepaper titled "Why Enterprise Software Is Well‑Positioned to Capitalize on a New Phase of AI‑Driven Growth" and uses a proprietary AI Impact Assessment Framework .

Equity Ticket Range

• Equity tickets: €5 million to €150 million per investment .
• Target company enterprise values: typically in the €30 million to €500 million range .

Strategic Rationale from CEO and CIO Charly Zwemstra

Charly Zwemstra, who founded the firm in 2003 and serves as its Managing Partner and Chief Investment Officer, framed the fundraise around several core ideas:

• 'Boring is beautiful' thesis: Zwemstra argues that non-glamorous, mission-critical enterprise software — the kind that runs hospitals, payroll systems, governments, and logistics — is precisely where the next decade of durable value sits. He believes this segment is misunderstood by public markets .
• Counter-cyclical conviction: Main raised a record amount at a time of "growing investor apprehension regarding the software industry," betting that the sell-off in software stocks creates an attractive entry point for buyout investors .
• Proven repeatability: The record 120%+ re-up rate and the closure at hard caps in under six months validates that LPs view Main's lower-middle-market, buy-and-build model as highly repeatable and resilient .
• Focus on profitable scale-ups: Main targets "profitable Enterprise Software scale-ups" where it can partner with entrepreneurs to drive international expansion and strategic bolt-on acquisitions .

Investment Parameters Summary

The announcement underscores a key moment for European private equity: a specialist firm with a narrow, repeatable thesis raised record capital from a global LP base by betting that the most valuable technology investments are not the flashiest, but the most essential.

This fact-checked article examines every key detail of the announcement, from fund sizes and LP composition to the contrarian AI strategy articulated by Managing Partner and CIO Charly Zwemstra.

Fund Names and Sizes

Both funds closed at their hard caps:

• Main Capital IX (flagship buyout fund): €4.0 billion
• Main Foundation III (foundation vehicle): €1.25 billion
• Combined total: €5.25 billion

Main Capital IX is more than double the size of its predecessor, Main Capital VIII, which raised €1.9 billion in 2024 . Main Foundation III also more than doubled the previous foundation vehicle .

Total AUM

The raise lifts Main's assets under management to over €12 billion. The firm now invests on behalf of over 200 limited partners .

LP Composition and Re-Up Rate

• Re-up rate exceeding 120%: Existing limited partners committed more capital than in the prior fundraise, demonstrating strong conviction in Main's strategy .
• Notable returning investor: Hamilton Lane, a global private markets investor, was among the existing LPs that re-upped .
• Global expansion of LP base: Both funds attracted commitments from sovereign wealth funds, public pension funds, and insurers across North America, Europe, the Middle East, and Asia .
• Growing US presence: In the 2024 predecessor fundraise (Main Capital VIII), approximately 25% of commitments came from US investors; the 2026 funds further expanded that international reach .

Historical Performance Metrics

• 38 exits completed at a weighted average gross return of 3.6x invested capital . (Note: some sources report 4.7x; the lower 3.6x figure is used here to be conservative, as it appears across multiple credible sources .)
• More than 300 portfolio companies invested in across the firm's history .
• 20+ year track record: The firm was founded in 2003 .

Geographic and Sector Focus

Core markets: Benelux, DACH (Germany, Austria, Switzerland), Nordics, France, and North America .

New expansion into the United Kingdom: The firm announced plans to enter the UK market with these new funds .

Exclusive sector focus: Enterprise software (B2B) only. Main targets SaaS, cybersecurity, digital health, fintech, legal tech, govtech, and HR/payroll software . The firm pursues a buy-and-build strategy — acquiring majority and controlling stakes in profitable B2B software companies. It does not do minority growth equity or venture-stage deals .

AI Strategy: 'Betting Against the AI Panic'

Main is making a deliberate contrarian bet. The firm's view, as reported by TNW and other outlets, is that while public markets fear AI will disrupt enterprise software, AI is instead creating a new frontier of growth for essential, 'boring' enterprise software .

According to Main, AI is rapidly reshaping how software is built, sold, and scaled, creating AI-driven growth opportunities across its core verticals — healthtech, govtech, infrastructure software, and others . The firm published a whitepaper titled "Why Enterprise Software Is Well‑Positioned to Capitalize on a New Phase of AI‑Driven Growth" and uses a proprietary AI Impact Assessment Framework .

Equity Ticket Range

• Equity tickets: €5 million to €150 million per investment .
• Target company enterprise values: typically in the €30 million to €500 million range .

Strategic Rationale from CEO and CIO Charly Zwemstra

Charly Zwemstra, who founded the firm in 2003 and serves as its Managing Partner and Chief Investment Officer, framed the fundraise around several core ideas:

• 'Boring is beautiful' thesis: Zwemstra argues that non-glamorous, mission-critical enterprise software — the kind that runs hospitals, payroll systems, governments, and logistics — is precisely where the next decade of durable value sits. He believes this segment is misunderstood by public markets .
• Counter-cyclical conviction: Main raised a record amount at a time of "growing investor apprehension regarding the software industry," betting that the sell-off in software stocks creates an attractive entry point for buyout investors .
• Proven repeatability: The record 120%+ re-up rate and the closure at hard caps in under six months validates that LPs view Main's lower-middle-market, buy-and-build model as highly repeatable and resilient .
• Focus on profitable scale-ups: Main targets "profitable Enterprise Software scale-ups" where it can partner with entrepreneurs to drive international expansion and strategic bolt-on acquisitions .

Investment Parameters Summary

The announcement underscores a key moment for European private equity: a specialist firm with a narrow, repeatable thesis raised record capital from a global LP base by betting that the most valuable technology investments are not the flashiest, but the most essential.